Abstract: An emergency alarm system includes a portable digital pulse transmitter having a failsafe mode of activation by the user thereof. A coded pulse signal is transmitted to a decoding device in a digital receiver. The receiver has a latch relay which is connected in circuit with a power source and an alarm device. The alarm system may have a water sensor for setting off the alarm in the event the user falls in the water and may have remotely activated transmitters for locating the user with a receiver and directional antenna.

Abstract: A pipe hanger for use in attaching pipe to a depending hanger rod preferably within an industrial environment which includes a first member having outwardly extending hook ends and fixed to the depending hanger rod, and a second member having an arcuate lower portion and substantially linear top portion terminating in a upper area having looped ends each looped end adapted to overlie one hooked end of the first member.